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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > CD73 Replacement



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      04-26-2013, 10:21 AM   #1
ellipsis212
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CD73 Replacement

How is the BMW Professional head unit related to the system? Meaning, is the head unit itself coded for a specific system (i.e., L7 vs HiFi) or is the car coded for that system, or even both?

Last edited by ellipsis212; 04-29-2013 at 05:27 PM.
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      04-08-2016, 12:41 PM   #2
lmassy
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cd73 versions 030787 vs 020787

Does anyone know if there is a real difference between the 020787 and the 030787 radio's?
The reason I ask is that my current radio (version 030787) died and I found a replacement from a junk car, but it is a 020787.
Will I lose some functionality?
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      04-08-2016, 01:51 PM   #3
ctuna
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The radio needs to be programmed for

The radio needs to be programmed for the type of sound system and
your options. This was possible with a simple coding cable on the early
model year cars and then at some point if required and icoma cable.
There three possible main configurations for the sound system stereo
(base system most of world and US 2010 early 2011) Hi Fi and L7.
Then the options are things like usb ,pdc,sos.

If for example you get a radio that is programmed for L7 and you put in
a Hi Fi car there will be no sound, as the sound is transmitted via the fiber optic
bus in a L7 car.

Also there is some change in the radios over time .
The early ones had no built in HD
The newer ones have built in HD
USB and satellite where these used to be separate modules .
It would be nice if there was a list.

I would talk to Bimmertech about radio coding if its something
you don't want to invest a great amount of time to do.

http://www.e90post.com/forums/showthread.php?t=687463

Last edited by ctuna; 04-08-2016 at 02:08 PM.
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      04-08-2016, 09:07 PM   #4
lmassy
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020787 and 030787 versions of the CD73

Another question about the different radio's.
Are the faceplates or digital displays interchangeable on these?
the radio that dies is the CD73 version 030787 and had a good screen.
The replacement radio that I bought is a CD73 version 020787 but the screen is pretty poor in the heat.
I went to switch them out, but the ribbon cables looked to be different sizes?
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      04-08-2016, 09:22 PM   #5
ctuna
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This is a common failure and there are repair kits

This is a common failure and there are repair kits and places
that will fix them.

http://www.bimmerfest.com/forums/sho...d.php?t=761513

http://www.diyparadise.net/bmw_cd73_repair.html

http://cgi.ebay.com/ebaymotors/BMW-C...ioQ5fVideo#ht_
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